LunaCat- Cycle, Period, TTC
JINTAE IM Health & Fitness iPhoneiPadiPod touch
LunaCat- Cycle, Period, TTC is a free Health & Fitness app for iPhone and iPad by JINTAE IM. Requires iOS 16.4. Updated October 22, 2026.
- Price
- Free
- on the App Store
- Size
- 60 MB
- Age 4+
- Updated
- Oct 22
- 2026 · v1.4.4
Screenshots
About LunaCat- Cycle, Period, TTC
From your period to ovulation and trying to conceive — your body's rhythm, at a glance Your body shifts a little every month. Track it with LunaCat. LunaCat is a free period tracker that logs your cycle, ovulation and fertile window, and helps with trying to conceive and looking after your health. Log just your period start date and it works out your next period, your predicted ovulation and your fertile window. You can log the day-to-day too — symptoms, mood, discharge, birth control pills. No account needed. Start light, with a calendar that's just yours. ■ Logging a period is one tap When your period starts, press the button. The start date alone is enough to work out your next cycle. · One-tap period start · Next period worked out for you · See your cycle and period length · Edit past periods · Month and year calendar views ■ Period, ovulation and fertile days on one calendar Days you bled, your next expected period, predicted ovulation and your fertile window are each marked clearly. Tap a date and that day's logs open right up. ■ Ovulation and your fertile window Log a positive ovulation test and this cycle's prediction adjusts to it. Not using test strips? You can mark your ovulation day yourself. · See your predicted ovulation · See your fertile window · Log positive ovulation tests · Mark ovulation yourself · Cycle view built for conceiving ■ Trying to conceive, pregnant, breastfeeding or on birth control Your home screen follows whatever matters to you right now. Trying to conceive? It leads with ovulation and your fertile window. Just tracking your cycle? It leads with your next period. You can also say you're pregnant, breastfeeding or on contraception. ■ Log how your body feels Dates alone tell you less than dates plus how you actually felt. · Period symptoms and PMS · Mood changes · Vaginal discharge · Digestion and activity · Sex · Contraception · Birth control pills Look back at how you felt at this point in earlier cycles, too. Log your mood and Luna the cat's expression changes with it. Pick who keeps you company — Luna the black cat, or Pinkduck. ■ Your cycle, analysed Once a few cycles are logged, your own pattern gets easier to read. · Average cycle length · Average period length · Cycle changes month by month · How regular your cycle is · Symptom heatmap See which symptoms and moods tend to show up at which point in your cycle. ■ Only the reminders you want, when you want them · Next period reminder · Ovulation and fertile window reminder · Birth control pill reminder · Daily log reminder ■ A home screen widget See how many days until your next period without opening the app. Because it's personal, the details are hidden by default — turn them on whenever you like. ■ Share only what you want with your partner Turn your fertile window and predicted ovulation into a card and send it to your partner. Choose exactly what goes on it — ovulation date, fertile window, your moods and symptoms. The card is built on your own device. ■ Reads that make sense of your body · The menstrual cycle in four phases · Premenstrual changes (PMS) · Choosing period products · Birth control methods · Vaginal health · Signs worth seeing a doctor about ■ Your logs, for your eyes Period, pregnancy and sex logs are sensitive, so privacy got real attention. · App lock with Face ID or your fingerprint · Screenshot and screen-recording blocking · Hidden notification content on your lock screen LunaCat is not a medical device, and period, ovulation and fertile window predictions are for guidance only. Fertile window predictions must not be used as a method of contraception. Talk to a healthcare professional about any medical decision relating to your health or a pregnancy.
What’s new
Version 1.4.4 · Updated October 22, 2026
Minor bug fixes and improvements.
App privacy
The developer, JINTAE IM, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
Alternatives to LunaCat- Cycle, Period, TTC
Looking for apps like LunaCat- Cycle, Period, TTC? Here are 6 similar apps on the App Store. The highest rated is Bloom: First Period Tracker (4.8/5), and all 6 are free to download.
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Bloom: First Period Tracker
4.8
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Period Tracker - Ruby
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Soso: First Period Tracker
4.7
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Period tracker, calendar
4.5
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Ovulation & Fertility Tracker
4.5
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Maya - Period & Health
4.8
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| LunaCat- Cycle, Period, TTC | – | Free | October 22, 2026 | |
| Bloom: First Period Tracker | 4.8 / 5 (13) | Free | Sep 26, 2026 | Compare |
| Period Tracker - Ruby | – | Free | Oct 13, 2026 | Compare |
| Soso: First Period Tracker | 4.7 / 5 (763) | Free | Oct 22, 2026 | Compare |
| Period tracker, calendar | 4.5 / 5 (283) | Free | Dec 27, 2023 | Compare |
| Ovulation & Fertility Tracker | 4.5 / 5 (2,754) | Free | Aug 13, 2025 | Compare |
| Maya - Period & Health | 4.8 / 5 (3,014) | Free | Oct 6, 2026 | Compare |